Method of making tire casings



May 27, 1930. J. HOWARD METHOD MAKING TIRE GASINGS Filed May 1e, 192'?k .Toxin HowAnnoF MNTEAL, Y l

l ASSIGNMENTS, oFTnRnEmIGHTHs To s y e j, Pt'e-ntd .Mlyl 1930211 METHQn-orvivraigrnerrnncnsmes l u 'y ky,AlpplicatioenrV ledfvMayl'G,

Y fThe inventionrelates toatire and jects of the invention f pairing of tires,

`ofthe Casin the method of mak-ing ,thesame yand the ob are to reinforce'the eX- l posed Wall surface ina ymanner that will @.ffecfually by' nails7 glass' or otherv sharpY material pic l ygarage or'shopand therebyzjsave theinner air v tube from"puncture`s or e Y r l() ,blow-outs dueto the deflation of the airtube and collapse ofthecasing or to thejgcontact `l0 with'sharp obstacles 'on' the roadway; to vin- "sure economy .in lthe 4maintenanceOftires tears to i eliminateA for many kinds of Vehicles and o particularly for motorcars used in pleasure and vbusiness cars; and generally,v to pry efficient and economical tire"Casing-orcasing` Y' ysection.'

Thedrawings illustrate -thevmethod ofas#V sembling and fr treatingthef'several novel parts,jw'hich consist'essenti'ally ofananimal- :material treatedfor.yiraterproolingk purposes t Y and forstiffening andbuilt'up to form acom-z f, posite/solid wall adapted to and enclose ya pneumaticftube or other*V fillingV y substance5 the inventiony being 'y clearly pointed out'in-Tthe broad andspecific claimss for-noveltyrfolloV Y ing ay description (of `a' pre; ferred formof the invention'. v-

Figure '1" shows `the blank` cut f j *.Figureu'Q-lshows this yblankistretclfi-ed vcna circular lforming "bar and "rigidly Y clamped Y.; thereto.

o A, fin asemi-dry condition'beingvpassed through.`

/ the reinforcing supportsV with-theffabrie or Y VV"Fifbrur'e 3' isf,v a View show-ingv they casing i a bath containing a llerinliquidform and adapted`-ft0 become Consistentvv on exposure.; Y,Figure @illustrates theinner and outer main layers"forming` reinforcing supiiorts.V

'o Figure 5g illustrates the-next,y condition of cotton layers applied thereto. beds` `of cementitious material. f:

of Figure Iillustrates the composite {edlup on-thelroad-or yinv the -ffnectionL scotch-'crop hasbeen .fg'und a :heatedchamber, f so watery whichnmmediately :effects slight quiter sufficient fori it and remainfso formedir. and quite. moist .enough fit toa wheel rim;

to-,take ,its final shape but only semi-vdry,

Another lhide shield. "26;l forming bar.y and made lwithout the [rim grip's Q and of slightly smaller dimensionsfinforder T .f stance 28 and are thus l rwall surfaceof theainner hide, shield 26)'11` 1927. Yserial No.y 191,802;

outer exposed surface. Y Lil/re numerals of reference` indi'catecor-- f responding' Parts-infhlvalious igil'llesf form a bl'le/ Ito thelpenetration l j is t-ut'thebljank from a hideand in this-e911; :particu- Q. 'i tliisflinT v"llh'e, rst :step Vin carrying;pv out this methodff larly suitable for* thegpmp'oses Aof vention.. e, .Y v.

j 1s in a 'raw' moist condition and so Qis;

and' forming and held byy ferm andare .held Y by the bolts andthese discsin-.tu'rn hold the forming rmgsgQQ- and Qlrmly' on, the hide 10 ,'overr, vthe'projectingvends 22 "of theflanges 12and 13 thus shaping the,` rim grips V Vof'thecasmgj.v i, *Y The `hide l0 is-now exposedto fthe -at-A mospher or to .a warm 'as to rel'rnoveV Ythe free stifleningof the hide to; leavek thepores free vand, open;

facing appliedjon'the stretchedfaround acircular formingbar 11 Y hakvqin'gthe circular; angesvlZ andglujutting y from 'the inner wall ofthe bar ."1

base surfaces 14k andi l5. around "Whcnthe i Abide stretched 16 'and l7." 'lhe clamps .16 andfl? areainjclisc i 18 and1nuts I s es i i thejclampsm 23 and amen] i, Y lmlnatllrlg .transverselyat the inner wall ends if Y blast. orenclosedin Vfr'Ihehidershield'Qthusformedffromthe* VY i',lanlaio*isz-uienfronted@ a2 bathcontail.; f I i inga solution ofviscous or otherpenetrating i `substa-nce,'which-enters the'poresfof the'hide fand. fillssli'd 'po-res; so thatthe hide shield when completely'dry has alllthe pores stopped` 'Y by this ur Whih meanwhile hasbecomelV 1 consistent to 'further Stiffen itimpervious tofmoisture.

rIhe layers of cotton 27.1 preferably,vs`iXfi-niv i number are imbedded inthecementitious sub` -Y' secured to the outer Y V theV hide and makel- Y isformed onva! 1 

